blob: 19032601fa6e2db048dfcdf8108521098ec995d0 [file] [log] [blame]
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
public class Main {
public Main() {
}
static int testLiveArgument(int arg) {
doStaticNativeCallLiveVreg();
return arg;
}
static void moveArgToCalleeSave() {
try {
Thread.sleep(0);
} catch (Exception e) {
throw new Error(e);
}
}
static void $opt$noinline$testIntervalHole(int arg, boolean test) {
// Move the argument to callee save to ensure it is in
// a readable register.
moveArgToCalleeSave();
if (test) {
staticField1 = arg;
// The environment use of `arg` should not make it live.
doStaticNativeCallLiveVreg();
} else {
staticField2 = arg;
// The environment use of `arg` should not make it live.
doStaticNativeCallLiveVreg();
}
if (staticField1 == 2) {
throw new Error("");
}
}
static native void doStaticNativeCallLiveVreg();
public static void main(String[] args) {
System.loadLibrary(args[0]);
if (testLiveArgument(staticField3) != staticField3) {
throw new Error("Expected " + staticField3);
}
if (testLiveArgument(staticField3) != staticField3) {
throw new Error("Expected " + staticField3);
}
testWrapperIntervalHole(1, true);
testWrapperIntervalHole(1, false);
}
// Wrapper method to avoid inlining, which affects liveness
// of dex registers.
static void testWrapperIntervalHole(int arg, boolean test) {
try {
Thread.sleep(0);
$opt$noinline$testIntervalHole(arg, test);
} catch (Exception e) {
throw new Error(e);
}
}
static int staticField1;
static int staticField2;
static int staticField3 = 42;
}